Front

What are renewable energy resources?

Back

Energy resources that are replenished naturally over relatively short periods of time, such as solar, wind, and geothermal energy.

Front

What are nonrenewable energy resources?

Back

Energy resources that are available in limited supplies and cannot be replenished in a short time, such as coal, oil, and natural gas.

Front

Give two examples of nonrenewable resources.

Back

Coal and Oil.

Front

What is geothermal energy?

Back

Energy generated by using heated water or steam from the Earth to power a turbine that generates electricity.

Front

What is the main characteristic of renewable resources?

Back

They are replenished naturally over relatively short periods of time.

Front

What percentage of US energy comes from renewable resources?

Back

Less than 10%.

Front

What is solar energy?

Back

Energy harnessed from the sun's rays, which can be converted into electricity or heat.

Front

What is wind energy?

Back

Energy generated by converting the kinetic energy of wind into mechanical power or electricity.

Front

What is biomass energy?

Back

Energy produced from organic materials, such as plant and animal waste.

Front

What is hydroelectric energy?

Back

Energy generated by using the flow of water to turn turbines that produce electricity.